Persistent weak layers
- Above treeline
In the high altitudes, take into account the persistent weak layer problem in the northern sector.
In the high altitudes, take into account the persistent weak layer problem in the northern sector.
The avalanche risk is low. At high altitudes above the tree line, there is still a persistent weak layer problem in the northern sector, especially in shady gullies and bowls. Small to medium-sized slab avalanches can occur in a few places under heavy additional load. Avalanche prone locations are mainly in the transition from little to more snow. Small wet loose snow slides are still possible in isolated areas, but most areas are already unloaded. Small gliding avalanches may also occur on steep grassy slopes.
Due to the very mild weather phase, the snow surface is quickly soft and moist in the morning. The melt-freeze crust can last longer in shady high altitudes. The old snowpack here is unfavourably structured and weakened in places with crusts and embedded faceted crystals. There is little snow below 1500 metres. On steep grassy slopes and forest embankments with larger snow reserves, the entire snowpack can start gliding snow.
The evening and night will be mostly dry, but a few patches of cloud will pass through. After a fairly sunny morning, a few spring clouds will form in the afternoon. However, it will remain mainly dry. The snowfall level will be between 1400 and 1700 metres above sea level. The temperature will be around -2 degrees at an altitude of 2000 metres and between 1 and 6 degrees at an altitude of 1500 metres. The wind will be mostly light with gusts between 20 and 40 km/h from south to north-west.
From Thursday, high pressure will prevail and temperatures will remain very mild. The air will become significantly drier at higher altitudes. The avalanche risk remains low.
Bulletin data: Avalanche Warning Service Lower Austria (CC BY 4.0)